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Guarulhos Intl

$383+ Cheap flights from Ontario (ONT) to Guarulhos Intl, Brazil (GRU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GRU
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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Cheap flight deals from Ontario to Guarulhos Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Guarulhos Intl (GRU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 25, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$981
(Flightnetwork)

One-way from

$383
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$621
Provider with most accurate pricing for Ontario-Sao Paulo Guarulhos Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Sao Paulo Guarulhos Intl flights.
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From Ontario to Sao Paulo Guarulhos Intl
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One-way flight from Ontario to Sao Paulo Guarulhos Intl
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Highest demand for flights based on searches. 15% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to Guarulhos Intl

Cheapest flights from Ontario to Guarulhos Intl
Explore the most affordable flight options available from Ontario to Guarulhos Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1011:25 pmONT - GRU
2 stops21h 15mAvianca
Mon 5/191:45 amGRU - ONT
2 stops24h 10mAvianca
Deal found 4/24$981
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:00 amONT - GRU
1 stop21h 35mUnited Airlines
Thu 5/299:50 pmGRU - ONT
2 stops18h 41mUnited Airlines
Deal found 4/24$1,038
This Mytrip deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/281:09 amONT - GRU
2 stops24h 26mMultiple Airlines
Tue 5/67:10 pmGRU - ONT
3 stops32h 03mMultiple Airlines
Deal found 4/24$1,080
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:15 pmONT - GRU
2 stops28h 00mDelta
Thu 5/810:50 pmGRU - ONT
1 stop24h 43mDelta
Deal found 4/24$1,119
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:45 pmONT - GRU
1 stop14h 30mAmerican Airlines
Thu 5/2910:00 pmGRU - ONT
1 stop15h 50mAmerican Airlines
Deal found 4/25$1,180
This Iberia deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/210:54 amONT - GRU
2 stops28h 56mIberia
Wed 7/166:00 pmGRU - ONT
2 stops28h 59mIberia
Deal found 4/24$2,834

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Guarulhos Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2025.
Use the filters below to find and compare flights from Ontario to Sao Paulo Guarulhos Intl Airport that are best for you.

Fly from

Ontario

Fly to

Guarulhos Intl

Route

Depart

Return

Price

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sat 5/10

11:25 pm-12:40 am

2 stops21h 15m

Sao Paulo Guarulhos Intl

Mon 5/19

1:45 am-9:55 pm

2 stops24h 10m

$981

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 5/22

6:00 am-7:35 am

1 stop21h 35m

Sao Paulo Guarulhos Intl

Thu 5/29

9:50 pm-12:31 pm

2 stops18h 41m

$1,038

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 5/15

7:05 am-9:00 am

1 stop21h 55m

Sao Paulo Guarulhos Intl

Thu 6/5

10:50 pm-7:33 pm

1 stop24h 43m

$1,179

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 5/16

12:45 pm-7:15 am

1 stop14h 30m

Sao Paulo Guarulhos Intl

Thu 5/29

10:00 pm-9:50 am

1 stop15h 50m

$1,180

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 5/9

1:09 am-2:15 am

3 stops21h 06m

Sao Paulo Guarulhos Intl

Mon 5/19

1:45 am-9:55 pm

2 stops24h 10m

$1,212

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Wed 7/2

10:54 am-7:50 pm

2 stops28h 56m

Sao Paulo Guarulhos Intl

Wed 7/16

6:00 pm-6:59 pm

2 stops28h 59m

$2,834

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sat 5/31

1:09 am-2:15 am

3 stops21h 06m

$383

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sat 5/10

11:25 pm-12:40 am

2 stops21h 15m

$485

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Wed 9/24

6:39 pm-8:50 pm

2 stops22h 11m

$489

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 5/8

6:08 am-7:35 am

1 stop21h 27m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 13 results
1
2

Compare providers for flights from Ontario to Guarulhos Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Guarulhos Intl in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Sao Paulo Guarulhos Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Sao Paulo Guarulhos Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Ontario-Sao Paulo Guarulhos Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Sao Paulo Guarulhos Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Sao Paulo Guarulhos Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Guarulhos Intl

Have a flexible travel schedule? Discover the best time to fly to Guarulhos Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Sao Paulo Guarulhos Intl Airport

What is the cheapest month to book a flight from Ontario to Sao Paulo Guarulhos Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Ontario to Sao Paulo Guarulhos Intl Airport (average of $691). Flying from Ontario to Sao Paulo Guarulhos Intl Airport in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Guarulhos Intl by month

Plan your trip to Guarulhos Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sao Paulo Guarulhos Intl Airport ranges from 0.8 - 9.4 inches per month. January is typically the wettest month, when rainfall can reach 9.4 in. July is typically the driest time to visit Sao Paulo Guarulhos Intl Airport when rainfall is around 0.8 in.

Temperature in Guarulhos Intl by month

Plan your trip to Guarulhos Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sao Paulo Guarulhos Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 62.6 F).

Reviews of airlines servicing Guarulhos Intl

Get insights into the airlines that provide service to Guarulhos Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guarulhos Intl. Reviews last updated April 25, 2025.
To help decide which airline to fly from Ontario to Sao Paulo, see what other customers have to say about Delta, Copa Airlines and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.6
Good
1,411 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,207 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Guarulhos Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Sao Paulo Guarulhos Intl?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Sao Paulo Guarulhos Intl. You should not have trouble finding flights to Sao Paulo Guarulhos Intl from Ontario; the airport handles an average of 0 outbound flights to Sao Paulo Guarulhos Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ontario airport to Sao Paulo Guarulhos Intl. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • What are the cheapest airlines flying from Ontario to Sao Paulo Guarulhos Intl Airport round-trip?

    Avianca, at $981, was found to be the cheapest airline from Ontario to Sao Paulo Guarulhos Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Delta.

  • What are the cheapest airlines to fly from Ontario to Sao Paulo Guarulhos Intl Airport one-way?

    The cheapest airlines for a one-way flight from Ontario to Sao Paulo Guarulhos Intl Airport are Avianca ($485), Copa Airlines ($489), and United Airlines ($518).

  • Can I find deals for flights from Ontario to Guarulhos Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Guarulhos Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Guarulhos Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Guarulhos Intl.

  • Can I find deals for business class flights from Ontario to Guarulhos Intl?

    Yes. Cheapflights offers flight deals from Ontario to Guarulhos Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Sao Paulo Guarulhos Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Sao Paulo Guarulhos Intl Airport (average of $691). Flying from Ontario to Sao Paulo Guarulhos Intl Airport in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Santos
Guarulhos

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